Awning window construction



April 1956 E. A. WESTMAN AWNING WINDOW CONSTRUCTION 3 Sheets-Sheet 1Filed Sept. 11, 1953 IN VEN TOR.

3 H N WN m. 7 mi W1; A. MB a6 April 10, 1956 E. A. WESTMAN AWNING WINDOWCONSTRUCTION I: Sheets-Sheet 2 Filed Sept. 11, 1955 I El INVENTOR.

April 1956 E. A. WESTMAN AWNING WINDOW CONSTRUCTION 3 Sheets-Sheet 3Filed Sept. 11, 1953 6 /A O J:

INVENTOR.

51/1463? A. WfJTMA/V ATTORNEYS United AWNING wn tnow coNsTnUcrroNApplication September 11, 1953, Serial No. 37?,554

4 Claims. (Cl. 189-67) This invention relates to an improved window ly.Itfirelates particularly to that type of window assembly commonly termedan awning window wherein one or more swinging sash are pivoted uponhorizontal pivots within a frame for swinging movement outwardly and forraisingand lowering of the pivotal mounting as the sash swing.

Such window structures are coming into wide use because of theirconvenience in providing ventilation while at thesame time preventingthe entrance of rain though the window may be partly open.

An object of this invention is to provide such a window assembly whereinthe operating mechanism is so constructed as to facilitate opening andclosing of the sash andwherein the construction is such that thefriction of such opening and closing movement is reduced to a minimumand the sash may be easily swung to and from the open and closedpositions.

Another object is the provision of a window assembly of the characterdescribed wherein the various parts of the operating mechanism are sodesigned and arrange as to produce a compact assembly or" a finishedcharacter with a minimum of exposure of fastening devices on the outsideof the window frame.

An important feature of the invention is the'provision of. complementarybrackets which are channel-shaped in cross section and which are mountedwithin channelshaped jamb members and which brackets serve as guides tosupport linearly slidable bars that form a part of the operatingmechanism for swinging the sash. An advantage is that the brackets areso constructed and the slidable bars are so formed that the bars travelthrough the brackets with a minimum of friction and the operation ofthe-mechanism is thereby facilitated.

Thebracketsserve not only to support theslidable bars for up and downmovement but they also pivctally support the fulcrum links which linksare pivoted at their outer ends to the sash to support the sash forswinging movement.

The brackets are so designed as to seat within the channel-shaped jambmembers though such jamb members may vary as to the accuracy of theircross-sectional channel formation. The bottom corners of the bracketsare provided with projecting seating ridges which engage snugly withinthe corners of the channel jamb to properly support thebra'cket and thebottom of the bracket and one side wall thereof are supported spacedfrom the bottom of the adjacent side wall of the channel jamb.

'Gther objects, advantages and meritorious features will more fullyappear from the following specification, claims and accompanyingdrawings wherein:

Fig. 1 is a perspectiveof a window assembly embodying the invention;

Fig. Zis-an elevation partly brokenaway of the window assembly shown inFi 1';

Fig. 3 is a vertical sectional view through the window assembly shown inFig. 2 showing the sash closed;

'* aten Y the sill.

2,741,346 Patented Apr. 10, 1956 Fig. 4 isa cross sectional view takenon the line 44 of Fig. 3;

Fig. 5 is a vertical'sectional view taken on the same line as Fig. 3 butshowing the swinging sash at an open position;

Fig. 6 is a cross sectional view taken through a window assembly on theline 6-6 of Fig. 3.;

Fig. 7 is a perspective of a fragment of a lower sash and operatingmechanism therefor associated with the supporting bracket.

Fig. 1 illustrates a window assembly comprising upper andlower sashindicated as'U and L respectively, disposed between the jamb portions 10of. the window frame, a sill which is indicated as 12, and a header 14.The jambs are complementary and spaced apart by the header and Theindividual jamb portions and the header portion and the sill portion areallchannel-shaped in cross section, as shown particularly in Figs. 3, 5and 6. The channels open outwardly, i. e. outwardly of the building. Asshown in Figs. 4 and 6 particularly, the outer side wall of each channelsection has a height greater than that of the inner side wall. A flange16 extends outwardly from the outer side wall. Flange 18 extendsinwardly of the window opening from the inner side wall. The flange 18is disposed substantially midway within the plane of the window.

The sash are here shown as provided with metal frames of conventionalconstruction and having face plate portions 2% which cover the jambchannel openings when the sash are closed. These face plates 28 alsooverlap the flanges 25, as shown in Fig. 6. The header id is shownasprovided with an outer weather protective inner flange 22 securedthereto to overhang the top rail of the upper sash, as shown in Figs. 3and 5.

The window assembly illustrated shows two swinging sash, but obviouslyany number of swinging sash desired might be provided, from one to alarge plurality. The sash are disposed between the jambs as is common inthis type. of window and each sash is supported for swinging movement bya pair of complementary individual adjustable fulcrum links 24. The twolinks of the pair of positioned on opposite sides of the sash and eachis pivoted at one end to the sash, as at 26, as shown particularly inFigs. 5 and'7.

Each of said links is pivoted at its opposite end at 23. to a bracketelement hereinafter described. The link may be adjusted in any desiredfashion, as for example, as shown in my copending application, SerialNo. 218,031 filed March 28, 1951, which became Patent No. 2,638,779 onSeptember 14, 1954', the link is adapted to fold alongside the sashwithin the channel of the jarnb member when the sash is closed, all asshown in Figs. 2, 3 and 6.

An important feature of this invention is the bracket element to whichthe stationary end' of the link is pivoted at 28. This bracket elementis indicated as 3%? and it is channel-shaped in cross sectioncorresponding generally to the channel shape of the jamb member withinwhich it ismounted.

Specifically, each bracket element has a bottom portion 32, on outerside wall portion 34-, and an inner side wall portion 36. The bracketelement is of a size to be snugly received within a channel ofthe jambmember. The bottom of the bracket is supported spaced from the bottom ofthe channel jamb by a pair of projecting corner ribs 38 and 4%); Suchare shown with particular clarity in Fig. 4. The rib. 40 is so shaped asto seat within the adjacent corner of the channel j'amb and space theside wall 36 of the bracket from the adjacent side wall of the jarnbchannel and space the bottom wall 32 of the bracket from the bottomwallof'the jamb channel.

The bracket is shown" as heldin place bya screw 42' extending throughthe side wall 34 of the bracket and" the adjacent side wall of the lambchannel. The brackets are of relatively short length, as shown in Figs.and 7. The brackets are complementary and one pair is disposed inproximity to the top of the window frame and the opposite pair inproximity to the bottom of the window frame. In Figs. 2, 3 and 5, thetwo adjacent brackets are shown at the bottom so as to provide greaterlength of support for the slidebars 44.

These brackets serve two functions. They serve to support the slide barsand the operating mechanism for slidable movement. They also serve as asupport for the inner ends of the fulcrum links 24.

Inasmuch as the brackets are provided with ribs 38 and 4d hereinabovediscussed, such brackets are adapted to seat snugly in the corners ofthe jamb channels regardless of slight malformations of such channels.more, the inner wall 36 of each bracket is disposed spaced from theadjacent inner wall of the jamb channel and provides ample clearance forthe head ofthe flange 28 which secures the inner end of the fulcrum link24 to such wall 36.

The slide bars 44 form a part of the operating mechanismand are slidablysupported within the brackets as Further- What I claim is: r

'1. in a window assembly, a frame having complementary jambschannel-shaped in cross section, complementai'y brackets channel-shapedin cross section correspondingly mounted one. within each jamb andseated against opposite side walls of the jamb channels at the bottomthereof, said jamb channels and bracket'channels being open outwardl gaswin ing sash disposed between the fiambs and having flanges adapted toclose over the open sides of the channel frames, complementary ful linksupon opposite sides of the sash each pivoted to the sash at one end ofthe link and pivoted at the opposite end of the link to the inner sideof the inner side wall of the adjacent bracket to fold within saidchannel bracket, a sash operator including a slide bar disposed withineach jamb and coupled with the sash to swing the sash, each slide barsupported within the channel bracket of the jamb and held spaced shownparticularly in Figs. 4 and 6. Each slide bar 44 is cut away along oneside providing a groove or a chan nel therein as shown at 46 and isprovided with a groove 43 along each edge which groove 48 extendslinearly of the slide bar, all as shown particularly in Figs. 4 and 6.Grooving the slide bar'as described reduces its frictional contact withthe inner face and the bottom of the bracket 3%) so that it slidesthereover readily. Each slide bar. is held toward the bottom of thebracket channel by a guide 7 element Silprojecting inwardly of the sidewall 34 of the bracket and is held toward the side wall 32 by a guideelement 52 projecting inwardly from the bottom of the bracket, as shownin Figs. 4 and 6. The brackets hold the slide bars from contactingthroughout their length the sliding movement of such bars. Each sash hasa bracket arm 56 formed integrally with its top rail and the outer endof such arm is pivotally coupled with the slide bar by pivot pin 55.

Operating linkage is provided in the form of a crank 60 mounted on theshaft 52 which shaftis provided with a worm 64 which meshes with thegear segment on the 7 'end of the arm 68. This arm is pivotedat 76within a in Figs. 3 and 5 is actuated to rotate the shaftand lift' theslide bars. The other link in the toggle is indicated as 82 and itextends from the link 78 to pivot 58 which connects the crank arm 56 atthe top of the lower sash with the slide bar 44. It will beunderstoodthat complementary sets of operating mechanism are provided within eachjamb and linked together through the shaft 80.

The employment or" the brackets described above provides not only apivotal support for the fulcrum links 24 but a guide for the slide bars44 and the brackets support the slide bars for easy guided slidablemovement and afford a good pivotal support for the swinging windows;

they also facilitate the assembly of the sash and operating mechanismwithin the jamb members.

Though no part of this invention, the flange 18 of the inner side wallof the jamb channel is provided with gaskets 91 one of which is adaptedto form a tight seal with a swinging sash and the other of which isadapted to form a tight seal with a storm sash when the same is placedin thewindo w.

.interior of the channel jamb elements and facilitate the V from theside walls of the jarnb channels forslidable movement over the outerside wall of the bracket, the outer side wall of each bracket providedwith a guide rib adapted to engage the edge of the slide bar and thebottom of each bracket provided with a guide rib 1 characterized in thatthe bottom corners of therbrackets are provided with downwardlyprojecting ribs adapted to seat within the interior corners of the jambsspacing the bottom of each bracket from the bottom of' the jamb, thatrib on the inner bottom corner of the bracket projecting laterallybeyond the inner side wall of the" bracket, spacing such side wall ofeach bracket from the inner side wall of the jamb. V v

4. In a window assembly, a frame having complementary jambschannel-shaped'in cross section, two pairs of complementary bracketschannel-shaped in cross section mounted within the two jarnbs, one pairin proximity to the tops of the jambs and the other pair in proximity tothe bottoms of the jambs, a swinging sash foreach pair of bracketsdisposed between the jambs, a pair of complementary fulcrum links foreach sash disposed on opposite sides of the sash and each link pivotedat one end thereof to the sash and pivoted at the opposite end thereofto the inner side wall of the'adjacent' channel-shaped bracket and onthe inner side of said a wall, a sash operator including a slide bardisposed within each jarnb and coupled with the adjacent sides of. thetwo swinging sash, each slide bar disposed within the upper and lower,channel brackets of its jamb adjacent to the outer side wall of'thebracket for lengthis opposed to the'outer side wall of the bracket andbeing grooved along that edge which is opposed to the bottom of thebracket.

References Cited in the file of this patent UNITED STATES PATENTS WileyMay 16, 1939 Westman July 7, 1953 a i r l i l

